Carl eichhorn



(No Model.)v C EICHHORN PAPER MAKING MACHINE.

IP a-,tented Deo. 48, 1891.

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UNITED STATES PATENT OFFICE.

CARLEICHHO'RN, OF FOCKENDORF, GERMANY.

PAPER-MAKING MACHINE.

' SPECIFICATION forming part of Letters Patent No. 464,608, dated December 8, 1891. Application filed February 11,41891. Serial No. 381,022. (No model.)

improvement in paper-making machines;

and it has for its object to carry the continuous length of paper from the making-wire without any assistance by hand through the couching-rolls, then to the first pressrolls,

and directly up to the second press rolls. Thus I avoid the waste which commonly results in feeding the continuous length of paper into the iirst press-rolls,'a-nd I further avoid any danger to the attendant of making Wire and other paper-machines while feeding the paper into the first press-rolls and withdrawing it therefrom.

" My machine requires no assistance by hand excepting to guide the paper from the second press-rolls onto the third press-rolls, or to the drying-cylinder, as the construction of the machine may require. I also obtain by my invention an increased working speed of the paper-machine.

The accompanying drawing represents a longitudinal vertical section through the feeding mechanism of my improved machine.

The paper coming from making-wire S will pass between the couching-rolls a and a2. It will adhere to the upper endless cloth i and proceed between said upper cloth and the wet felt below, passing over the guide-rollers l and 2 and between the first press-rolls h and b2, by which the water is pressed ont. Thence the paper passes over a guide-roller 4, the wet felt being not further in contact with the paper after the rolls b and b2 have been passed. The roller 4t is preferably made of copper covered with fine worsted or felt, by which the formation of blisters and folds, is prevented. The paper still adhering to the upper cloth t" then proceeds farther on to the upper roll c2 of the second press-rolls, against which the paper is forced by a weighted copper roller d of large diameter lying on the upper cloth t" and exercising a sufficient pressure to separate the paper from said cloth. vThe pressure, however, is not strong enough to squeeze water out of the paper. The paper now adheres to the upper roll c2, and being carried along by the same passes between the press-rolls c2 and c', together with the endless felt t', which enters between said rolls c and c2 in a downward direction. Vhile passing between said rolls c2 and c the paper is further delivered of the water still therein contained. In coming out from between saidv may work for months without being changed. v

It is constantly washed in its working course by a sprinkling tube or pipe g, provided with a suitable valve or valves that adjust the amount of water spread upon the cloth. A scraper h may be arranged above the upper couching-roll c2 to take off any excess of water.

`The lower sheets of endless felt are-of considerable length and may be employed without being exchanged for several piles, even with machines working with great speed.

The said endless sheets of felt may be conveniently, readily, and safely removed and exchanged. The upper endless felt t' is also of greater length than usually employed, and therefore maybe used for a longer time than hitherto practiced without interfering with -the bearings of the rolls and presser-cylinders. In mounting the feltvlthe upper pressroll c2 is raised by screwing, and the copper roll CZ, bearing against said roll c2, follows its motion, when the' felt 't' may be readily mounted.

The combination of au upper endless cloth c" with press-rolls b b2, guide-roller-c, press' rolls c c?, Weighted roller d, and endless felt t', substantially as specified.

In testimony whereof I hereunto sign my name in the presence of two subscribing witnesses, this 1st day of December, 1890.

CARL EICHHORN. l Witnesses:

CARL WILBE, C. RUAEE.

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